| Customized: | Customized |
|---|---|
| Standard: | API |
| Material: | Tungsten Carbide |
|
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| NO. | IADC | recommend parameters |
formation | |
| WOB KN/mm |
RPM r/min |
|||
| 1 | 116,117 | 0.35~0.8 | 150~80 | Extremly soft formation with low compressive strength and high drillability,such clay,mudstone,cretaceous |
| 2 | 126,127 | 0.35~0.9 | 150~70 | Soft formation with low compressive strength and high drillability,such as mudstone,gypsum,salinastone,soft shale,soft limestone |
| 3 | 136,137 | 0.35~1.0 | 120~60 | Soft to mid-soft formation with low compressive strength and high drillability,such mid-soft shale,anhydrite,mid-soft limestone,mid-soft sandstone and soft formation with hard interbeds |
| 4 | 216,217 | 0.4~1.0 | 100~60 | Soft to medium formation with low compressive strength,such as mid-soft shale,mid -soft limestone,mid-soft sandstone and soft formation with hard interbeds |
| 5 | 246,247 | 0.4~1.0 | 80~50 | Mid-hard formation with high compressive strength,such as hard shale,limestone,sandstone and dolomite |
| 6 | 417,437,447 | 0.35~0.9 | 150~70 | Extremely soft formation with low compressive strength and high drillability,such as clay,mudstone,cretaceous,gypsum,salinastone,soft shale and soft limestone |
| 7 | 517,527 | 0.35~1.0 | 140~60 | soft formation with low compressive strength ,such as mudstone,gypsum,salinastone,soft shale and soft limestone |
| 8 | 537,547 | 0.45~1.0 | 120~50 | Soft to medium formation with low compressive strength,such as mid-soft shale,mid -soft limestone,mid-soft sandstone and medium formation with harder abrasiveness interbeds |
| 9 | 617,627 | 0.45~1.1 | 90~50 | Mid-hard formation with high compressive strength,such as hard shale,limestone,sandstone,and dolomite |
| 10 | 637 | 0.5~1.2 | 80~40 | Hard formation with high compressive strength,such as sandstone,limestone,dolomite and anhydrite,marble |
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